Import/export HS code 731821: Spring washers and lock washers
Washers designed to prevent loosening, often used with screws and bolts
Why this is important if you are looking for potential customers in the UK:
- It helps you understand the market size for your product in the UK.
- It provides you with a list of potential leads who have bought similar products.
* UK only, last 24 months analysed
Imports by country
What this shows: Import market volume by exporter country into the UK.
Top 5 values
| Country | £ |
|---|---|
| United States | 8,176,528 |
| Germany | 7,752,867 |
| Sweden | 4,630,330 |
| China | 2,486,376 |
| Ireland | 1,723,533 |
Countries rank shift: first 12 months vs second 12 months
What this shows: Countries are on both sides of the Sankey. Left side is sorted by first 12-month volume, right side by second 12-month volume, so rank changes are visible from line crossings.
Top 10 values
| Country | First 12m £ | Second 12m £ | Delta £ |
|---|---|---|---|
| United States | 4,576,673 | 3,599,855 | -976,818 |
| Germany | 3,599,112 | 4,153,755 | +554,643 |
| Sweden | 2,379,753 | 2,250,577 | -129,176 |
| China | 1,118,101 | 1,368,275 | +250,174 |
| Ireland | 1,029,761 | 693,772 | -335,989 |
| France | 954,945 | 762,590 | -192,355 |
| Poland | 421,706 | 268,027 | -153,679 |
| Netherlands | 524,546 | 149,739 | -374,807 |
| Italy | 347,820 | 315,654 | -32,166 |
| Japan | 373,437 | 215,151 | -158,286 |
Imports by country of origin
What this shows: Import volume by production origin country. Differences from exporter-country data can indicate re-export routes.
Top 5 values
| Origin | £ |
|---|---|
| United States | 7,041,186 |
| Germany | 6,911,253 |
| Sweden | 4,559,303 |
| China | 4,501,799 |
| France | 1,446,731 |
Country of origin rank shift: first 12 months vs second 12 months
What this shows: Origin countries are on both sides of the Sankey. Left side is sorted by first 12-month import value, right side by second 12-month import value, so rank changes are visible from line crossings.
Top 10 values
| Origin | First 12m £ | Second 12m £ | Delta £ |
|---|---|---|---|
| United States | 4,130,017 | 2,911,169 | -1,218,848 |
| Germany | 3,296,862 | 3,614,391 | +317,529 |
| Sweden | 2,461,216 | 2,098,087 | -363,129 |
| China | 1,808,714 | 2,693,085 | +884,371 |
| France | 763,770 | 682,961 | -80,809 |
| Italy | 507,696 | 497,452 | -10,244 |
| Poland | 397,215 | 278,158 | -119,057 |
| Japan | 407,955 | 242,282 | -165,673 |
| India | 257,689 | 338,043 | +80,354 |
| United Kingdom | 238,855 | 258,570 | +19,715 |
Importers across UK regions
What this shows: Number of importing companies by UK ITL2 region.
Top 5 values
| UK region | Companies |
|---|---|
| Berkshire, Buckinghamshire and Oxfordshire | 57 |
| West Midlands | 56 |
| Surrey, East and West Sussex | 36 |
| Greater Manchester | 33 |
| Inner London - West | 32 |
UK regions rank shift: first 12 months vs second 12 months
What this shows: UK regions are on both sides of the Sankey. Left side is sorted by first 12-month importer count, right side by second 12-month importer count, so rank changes are visible from line crossings.
Top 10 values
| UK region | First 12m | Second 12m | Delta |
|---|---|---|---|
| Berkshire, Buckinghamshire and Oxfordshire | 38 | 41 | +3 |
| West Midlands | 49 | 36 | -13 |
| Surrey, East and West Sussex | 29 | 23 | -6 |
| Greater Manchester | 24 | 24 | +0 |
| Inner London - West | 17 | 24 | +7 |
| Bedfordshire and Hertfordshire | 17 | 18 | +1 |
| Herefordshire, Worcestershire and Warwickshire | 21 | 16 | -5 |
| Shropshire and Staffordshire | 17 | 21 | +4 |
| Derbyshire and Nottinghamshire | 18 | 18 | +0 |
| Hampshire and Isle of Wight | 17 | 14 | -3 |
Import volume by transport
What this shows: Import value by transport mode used to bring goods into the UK.
Top 5 values
| Transport | £ |
|---|---|
| Air transport | 15,814,173 |
| Sea transport (not vehicle on ferry) | 7,674,788 |
| Roll on Roll off (RORO) | 7,122,118 |
| Other | 1,998,310 |
| Road transport | 73,391 |
Transport rank shift: first 12 months vs second 12 months
What this shows: Transport modes are on both sides of the Sankey. Left side is sorted by first 12-month import value, right side by second 12-month import value, so rank changes are visible from line crossings.
Top 10 values
| Transport | First 12m £ | Second 12m £ | Delta £ |
|---|---|---|---|
| Air transport | 8,226,654 | 7,587,519 | -639,135 |
| Sea transport (not vehicle on ferry) | 3,979,735 | 3,695,053 | -284,682 |
| Roll on Roll off (RORO) | 3,413,855 | 3,708,263 | +294,408 |
| Other | 1,278,038 | 720,272 | -557,766 |
| Road transport | 28,535 | 44,856 | +16,321 |
Import volume by port
What this shows: Import value handled by each UK port.
Top 5 values
| Port | £ |
|---|---|
| East Midlands Airport | 3,887,173 |
| Birmingham Airport | 3,563,048 |
| Dover | 3,399,235 |
| Glasgow Airport | 2,683,481 |
| Thamesport | 2,506,812 |
Port rank shift: first 12 months vs second 12 months
What this shows: Ports are on both sides of the Sankey. Left side is sorted by first 12-month import value, right side by second 12-month import value, so rank changes are visible from line crossings.
Top 10 values
| Port | First 12m £ | Second 12m £ | Delta £ |
|---|---|---|---|
| East Midlands Airport | 1,530,387 | 2,356,786 | +826,399 |
| Birmingham Airport | 1,866,881 | 1,696,167 | -170,714 |
| Dover | 1,324,002 | 2,075,233 | +751,231 |
| Glasgow Airport | 1,437,938 | 1,245,543 | -192,395 |
| Thamesport | 1,430,425 | 1,076,387 | -354,038 |
| London Heathrow Airport | 1,562,533 | 902,611 | -659,922 |
| Felixstowe | 1,201,546 | 1,031,099 | -170,447 |
| 000 | 1,278,038 | 720,272 | -557,766 |
| London Stansted Airport | 961,110 | 973,279 | +12,169 |
| Eurotunnel | 893,539 | 882,727 | -10,812 |
Importer companies by SIC division
What this shows: Industry breakdown (SIC divisions) of importing companies.
Top 5 values
| SIC | Companies |
|---|---|
| Wholesale trade, except of motor vehicles and motorcycles | 129 |
| Manufacture of machinery and equipment n.e.c. | 74 |
| Manufacture of fabricated metal products, except machinery and equipment | 67 |
| Repair and installation of machinery and equipment | 53 |
| Other manufacturing | 37 |
Importer companies over time
What this shows: Monthly count of unique importing companies.
Latest 5
| Month | Companies |
|---|---|
| 2026-01 | 113 |
| 2025-11 | 117 |
| 2025-10 | 100 |
| 2025-09 | 102 |
| 2025-08 | 103 |
Top importers
What this shows: Companies with the highest number of months traded for this HS code.
| Company | Months traded |
|---|---|
| TOYOTA MOTOR MANUFACTURING (UK) LIMITED | 107 |
| INTRALOX LIMITED | 103 |
| T.R. FASTENINGS LIMITED | 102 |
| HEXSTONE LTD. | 100 |
| APEX STAINLESS FASTENERS LIMITED | 96 |
| GE CALEDONIAN LIMITED | 93 |
| GE AIRCRAFT ENGINE SERVICES LIMITED | 82 |
| SCHLUMBERGER OILFIELD UK LIMITED | 80 |
| MEGGITT AEROSPACE LIMITED | 76 |
| CATERPILLAR (NI) LIMITED | 73 |
Importer company size by revenue band
What this shows: Distribution of importers across company revenue bands.
Top 5 values
| Revenue | Companies |
|---|---|
| 54m+ | 335 |
| 1m-15m | 196 |
| 15m-54m | 64 |
| Other | 50 |
| 0-1m | 20 |
Import seasonality
What this shows: Average monthly import pattern from historical data.
Exports by country
What this shows: Export market volume by destination country from the UK.
Top 5 values
| Country | £ |
|---|---|
| Germany | 13,866,281 |
| Canada | 4,106,624 |
| United States | 3,532,127 |
| Saudi Arabia | 2,868,141 |
| Netherlands | 1,806,187 |
Export countries rank shift: first 12 months vs second 12 months
What this shows: Destination countries are on both sides of the Sankey. Left side is sorted by first 12-month export volume, right side by second 12-month export volume, so rank changes are visible from line crossings.
Top 10 values
| Country | First 12m £ | Second 12m £ | Delta £ |
|---|---|---|---|
| Germany | 2,192,327 | 11,673,954 | +9,481,627 |
| Canada | 1,534,008 | 2,572,616 | +1,038,608 |
| United States | 1,499,531 | 2,032,596 | +533,065 |
| Saudi Arabia | 1,931,174 | 936,967 | -994,207 |
| Netherlands | 709,283 | 1,096,904 | +387,621 |
| France | 950,749 | 485,358 | -465,391 |
| Ireland | 699,995 | 620,813 | -79,182 |
| China | 430,810 | 547,952 | +117,142 |
| India | 426,878 | 399,220 | -27,658 |
| China, Hong Kong Special Administrative Region | 386,976 | 430,720 | +43,744 |
Exports by country of origin
What this shows: Export volume by production origin country. For re-exports, indicates where goods originated before UK export.
Top 5 values
| Origin | £ |
|---|---|
| XI | 284,714 |
| Ireland | 281,666 |
| Germany | 155,186 |
| Nicaragua | 58,340 |
| India | 9,701 |
Export origin countries rank shift: first 12 months vs second 12 months
What this shows: Origin countries are on both sides of the Sankey. Left side is sorted by first 12-month export value, right side by second 12-month export value, so rank changes are visible from line crossings.
Top 10 values
| Origin | First 12m £ | Second 12m £ | Delta £ |
|---|---|---|---|
| XI | 184,422 | 100,292 | -84,130 |
| Ireland | 86,344 | 195,322 | +108,978 |
| Germany | 152,587 | 2,599 | -149,988 |
| Nicaragua | 56,866 | 1,474 | -55,392 |
| India | 9,438 | 263 | -9,175 |
| United States | 2,359 | 4,490 | +2,131 |
| China | 1,788 | 2,876 | +1,088 |
| Italy | 4,387 | 1 | -4,386 |
| Sweden | 53 | 757 | +704 |
| Viet Nam | 314 | 358 | +44 |
Export volume by transport
What this shows: Export value by transport mode used to ship goods from the UK.
Top 5 values
| Transport | £ |
|---|---|
| Air transport | 21,083,160 |
| Roll on Roll off (RORO) | 17,911,269 |
| Sea transport (not vehicle on ferry) | 1,983,883 |
| Other | 809,974 |
| Road transport | 104,009 |
Export transport rank shift: first 12 months vs second 12 months
What this shows: Transport modes are on both sides of the Sankey. Left side is sorted by first 12-month export value, right side by second 12-month export value, so rank changes are visible from line crossings.
Top 10 values
| Transport | First 12m £ | Second 12m £ | Delta £ |
|---|---|---|---|
| Air transport | 11,019,231 | 10,063,929 | -955,302 |
| Roll on Roll off (RORO) | 3,977,101 | 13,934,168 | +9,957,067 |
| Sea transport (not vehicle on ferry) | 1,235,301 | 748,582 | -486,719 |
| Other | 500,445 | 309,529 | -190,916 |
| Road transport | 104,009 | 0 | -104,009 |
Export volume by port
What this shows: Export value handled by each UK port.
Top 5 values
| Port | £ |
|---|---|
| Hull | 10,453,645 |
| London Heathrow Airport | 6,890,752 |
| East Midlands Airport | 6,777,445 |
| Dover / Eurotunnel | 6,362,287 |
| Warton Aerodrome | 2,147,433 |
Export port rank shift: first 12 months vs second 12 months
What this shows: Ports are on both sides of the Sankey. Left side is sorted by first 12-month export value, right side by second 12-month export value, so rank changes are visible from line crossings.
Top 10 values
| Port | First 12m £ | Second 12m £ | Delta £ |
|---|---|---|---|
| Hull | 40,245 | 10,413,400 | +10,373,155 |
| London Heathrow Airport | 3,090,306 | 3,800,446 | +710,140 |
| East Midlands Airport | 3,594,781 | 3,182,664 | -412,117 |
| Dover / Eurotunnel | 3,517,750 | 2,844,537 | -673,213 |
| Warton Aerodrome | 1,620,868 | 526,565 | -1,094,303 |
| ZLC | 1,035,909 | 981,682 | -54,227 |
| London Stansted Airport | 748,639 | 1,069,831 | +321,192 |
| London Gateway Port | 600,259 | 367,133 | -233,126 |
| 000 | 500,445 | 309,529 | -190,916 |
| Manchester Airport | 438,856 | 319,749 | -119,107 |
Quick facts
HS code: 731821
Coverage: United Kingdom, most metrics for the last 24 months
Description: Washers designed to prevent loosening, often used with screws and bolts